1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/applications/science/math/nauty/default.nix b/nixpkgs/pkgs/applications/science/math/nauty/default.nix
index 986610eea60d..64cc4a9aa003 100644
--- a/nixpkgs/pkgs/applications/science/math/nauty/default.nix
+++ b/nixpkgs/pkgs/applications/science/math/nauty/default.nix
@@ -37,6 +37,6 @@ stdenv.mkDerivation rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ raskin timokau ];
     platforms = platforms.unix;
-    homepage = http://pallini.di.uniroma1.it/;
+    homepage = "http://pallini.di.uniroma1.it/";
   };
 }